JJ-4 six-unit electric stirrer is another new type of instrument based on the improvement of similar products at home and abroad. The instrument is equipped with six stirring heads, which work at the same time. The motor of the instrument adopts an advanced permanent magnet DC motor and is equipped with a power-increasing speed regulating circuit. It has the advantages of increased torque at low speed, stable speed, no noise, continuously adjustable speed, and long-term continuous use. The stirring rod is made of high-quality stainless steel, which has strong corrosion resistance and durability. The suspended workbench can be adjusted in height and is easy to operate. It is widely used in laboratories of various universities, environmental protection, sanitation and epidemic prevention, medical treatment, metallurgy, chemical industry, food industry and so on.